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Combine messages to reduce rendering time when possible (#1309)

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This commit is contained in:
Matt Irvine
2018-05-01 15:23:41 -07:00
committed by GitHub
parent 31328e79be
commit c2381424bc
1 changed files with 20 additions and 4 deletions
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24
src/sql/parts/grid/views/query/query.component.ts
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@@ -131,6 +131,7 @@ export class QueryComponent extends GridParentComponent implements OnInit, OnDes
private messages: IMessage[] = [];
private messageStore: IMessage[] = [];
private messageTimeout: number;
private lastMessageHandleTime: number = 0;
private scrollTimeOut: number;
private resizing = false;
private resizeHandleTop: string = '0';
@@ -248,13 +249,28 @@ export class QueryComponent extends GridParentComponent implements OnInit, OnDes
handleMessage(self: QueryComponent, event: any): void {
self.messageStore.push(event.data);
clearTimeout(self.messageTimeout);
// Ensure that messages are updated at least every 10 seconds during long-running queries
if (self.messageTimeout !== undefined && Date.now() - self.lastMessageHandleTime < 10000) {
clearTimeout(self.messageTimeout);
} else {
self.lastMessageHandleTime = Date.now();
}
self.messageTimeout = setTimeout(() => {
self.messages = self.messages.concat(self.messageStore);
self.messageStore = [];
while (self.messageStore.length > 0) {
let lastMessage = self.messages.length > 0 ? self.messages[self.messages.length - 1] : undefined;
let nextMessage = self.messageStore[0];
// If the next message has the same metadata as the previous one, just append its text to avoid rendering an entirely new message
if (lastMessage !== undefined && lastMessage.batchId === nextMessage.batchId && lastMessage.isError === nextMessage.isError
&& lastMessage.link === nextMessage.link && lastMessage.link === undefined) {
lastMessage.message += '\n' + nextMessage.message;
} else {
self.messages.push(nextMessage);
}
self.messageStore = self.messageStore.slice(1);
}
self._cd.detectChanges();
self.scrollMessages();
}, 10);
}, 100);
}
handleResultSet(self: QueryComponent, event: any): void {